The Greenhouse Effect Is

The greenhouse effect is:

A) the ability of sulfur dioxide and nitrogen oxides to retain heat in the lower atmosphere.
B) the ability of sulfur dioxide and nitrogen oxides to retain heat in the upper atmosphere.
C) the ability of certain gases to absorb solar heat and reflect the heat to Earth as short-wave radiation.
D) the ability of certain gases to retain solar radiation as heat energy.
E) the ability of structures created by humans to retain solar energy as short-wave radiation.